This post was prompted by the recent removal of a reference to
the theorem on the Wikipedia "Diamond theorem" disambiguation
page. The reference, which has been there since 2015, was removed
because it linked to an external source (Encyclopedia of Mathematics)
instead of to a Wikipedia article.
For anyone who might be interested in creating a Wikipedia article on
my work, here are some facts that might be reformatted for that website . . .
https://en.wikipedia.org/wiki/
User:Cullinane/sandbox —
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Cullinane diamond theorem The theorem uses finite geometry to explain some symmetry properties of some simple graphic designs, like those found in quilts, that are constructed from chevrons or diamonds. The theorem was first discovered by Steven H. Cullinane in 1975 and was published in 1977 in Computer Graphics and Art. The theorem was also published as an abstract in 1979 in Notices of the American Mathematical Society. The symmetry properties described by the theorem are related to those of the Miracle Octad Generator of R. T. Curtis. The theorem is described in detail in the Encyclopedia of Mathematics article "Cullinane diamond theorem." References Steven H. Cullinane, "Diamond theory," Computer Graphics and Art, Vol. 2, No. 1, February 1977, pages 5-7. _________, Abstract 79T-A37, "Symmetry invariance in a diamond ring," Notices of the American Mathematical Society, February 1979, pages A-193, 194. _________, "Cullinane diamond theorem," Encyclopedia of Mathematics. R. T. Curtis, A new combinatorial approach to M24, Mathematical Proceedings of the Cambridge Philosophical Society, 1976, Vol. 79, Issue 1, pages 24-42. |